Mizere Yamafuta Apansi Pansi - X65 SSAW Chitoliro Chachitsulo

Kufotokozera Kwachidule:

Kuyambitsa chitoliro chathu chachitsulo cha SSAW, chopangidwa mwaluso kwambiri chopangidwira ntchito zosiyanasiyana, makamaka mapaipi apansi panthaka. Chitoliro ichi cha X65 SSAW chimagwiritsidwa ntchito kwambiri pakuwotcherera mapaipi oyendetsa madzimadzi, zida zachitsulo, maziko a mulu, ndi zina zambiri. Ndi magwiridwe ake apamwamba komanso kulimba kwake, mankhwalawa amatengedwa kuti ndi oyenera kukhala nawo m'mafakitale osiyanasiyana ndi ma projekiti a zomangamanga.


Tsatanetsatane wa Zamalonda

Zogulitsa Tags

Spiral submerged arc welded chitoliro ndi gawo lofunikira laumisiri wamadzi, mafakitale a petrochemical, makampani opanga mankhwala, mafakitale amagetsi, ulimi wothirira, komanso zomangamanga zamatawuni. Kusinthasintha kwake komanso kudalirika kwapangitsa kuti ikhale imodzi mwazinthu zazikulu makumi awiri zomwe zapangidwa m'dziko lathu, zomwe zikuwonetsa kufunikira kwake komanso momwe zimakhudzira mafakitale osiyanasiyana.

Chitoliro chachitsulo cha SSAWamapangidwa mwachizolowezi kuti azinyamulira zamadzimadzi ndipo ndi yoyenera pamayendedwe amadzi ndi ngalande. Kapangidwe kake kolimba kamapangitsa kuti ikhale yabwino powonetsetsa kuti madzi akuyenda bwino komanso odalirika. Kuphatikiza apo, ndiyoyeneranso kuyendetsa gasi monga gasi wamalasha, nthunzi, ndi gasi wamafuta amafuta. Kulimba kwake kwamphamvu kwambiri komanso kukana kwa dzimbiri kumapangitsa kuti mpweya ukhale wotetezeka komanso wothandiza komanso umakwaniritsa zofunikira zamakina operekera mpweya.

Katundu Wakuthupi ndi Wamankhwala Wamapaipi Achitsulo (GB/T3091-2008, GB/T9711-2011 ndi API Spec 5L)

       

Standard

Gulu lachitsulo

Zamankhwala (%)

Tensile Property

Charpy (V notch) Impact Test

c Mn p s Si

Zina

Yield Strength (Mpa)

Mphamvu Yamphamvu (Mpa)

(L0 = 5.65 √ S0 (mphindi Wotambasula) (%)

max max max max max min max min max D ≤ 168.33mm D > 168.3mm

GB/T3091 -2008

Q215A ≤ 0.15 0.25 < 1.20 0.045 0.050 0.35

Kuwonjezera Nb\V\Ti molingana ndi GB/T1591-94

215   335   15 > 31  
Q215B ≤ 0.15 0.25-0.55 0.045 0.045 0.035 215 335 15 > 31
Q235A ≤ 0.22 0.30 < 0.65 0.045 0.050 0.035 235 375 15 > 26
Q235B ≤ 0.20 0.30 ≤ 1.80 0.045 0.045 0.035 235 375 15 > 26
Q295A 0.16 0.80-1.50 0.045 0.045 0.55 295 390 13 > 23
Q295B 0.16 0.80-1.50 0.045 0.040 0.55 295 390 13 > 23
Q345A 0.20 1.00-1.60 0.045 0.045 0.55 345 510 13 > 21
Q345B 0.20 1.00-1.60 0.045 0.040 0.55 345 510 13 > 21

GB/T9711-2011 (PSL1)

L175 0.21 0.60 0.030 0.030  

Posankha kuwonjezera chimodzi mwazinthu za Nb\V\Ti kapena kuphatikiza kulikonse

175   310  

27

Chimodzi kapena ziwiri mwazowonetsa mphamvu zamphamvu ndi malo ometa zitha kusankhidwa. Kwa L555, onani muyezo.

L210 0.22 0.90 0.030 0.030 210 335

25

L245 0.26 1.20 0.030 0.030 245 415

21

L290 0.26 1.30 0.030 0.030 290 415

21

L320 0.26 1.40 0.030 0.030 320 435

20

L360 0.26 1.40 0.030 0.030 360 460

19

L390 0.26 1.40 0.030 0.030 390 390

18

L415 0.26 1.40 0.030 0.030 415 520

17

L450 0.26 1.45 0.030 0.030 450 535

17

L485 0.26 1.65 0.030 0.030 485 570

16

API 5L (PSL 1)

A25 0.21 0.60 0.030 0.030  

Kwa kalasi B chitsulo, Nb+V ≤ 0.03%; zitsulo ≥ kalasi B, kusankha kuwonjezera Nb kapena V kapena kuphatikiza kwawo, ndi Nb+V+Ti ≤ 0.15%

172   310  

(L0 = 50.8mm) kuti iwerengedwe motsatira ndondomeko iyi: e=1944·A0 .2/U0 .0 A: Dera lachitsanzo mu mm2 U: Mphamvu zochepa zotchulidwa mu Mpa

Palibe kapena chilichonse kapena zonse ziwiri zomwe zimakhudzidwa ndi gawo lometa zomwe zimafunikira ngati muyeso wolimba.

A 0.22 0.90 0.030 0.030   207 331
B 0.26 1.20 0.030 0.030   241 414
X42 0.26 1.30 0.030 0.030   290 414
x46 0.26 1.40 0.030 0.030   317 434
X52 0.26 1.40 0.030 0.030   359 455
x56 0.26 1.40 0.030 0.030   386 490
X60 0.26 1.40 0.030 0.030   414 517
x65 0.26 1.45 0.030 0.030   448 531
X70 0.26 1.65 0.030 0.030   483 565

Chimodzi mwazofunikira za mipope yachitsulo yozungulira yozungulira ya arc ndimzere wa gasi wapansi panthaka. Ndi khalidwe lake lapamwamba ndi ntchito zake, ndiye chisankho choyamba chomanga maukonde odalirika komanso otetezeka a gasi.

Chitoliro cha Madzi Pansi Pansi

Chitoliro cha mzere wa X65 SSAWamapangidwa kuchokera ku zipangizo zapamwamba zomwe zimapangitsa kuti zikhale zolimba komanso zolimba. Izi zimapangitsa kuti zikhale zabwino kwa mapulogalamu omwe amafunikira kuthamanga kwambiri komanso kukana zinthu zachilengedwe. Kuyenerera kwake pamakhazikitsidwe apansi panthaka kumawunikiranso kamangidwe kake kolimba komanso kuthekera kopirira zovuta, ndikupangitsa kuti ikhale yankho losankhira ntchito zamapaipi apansi panthaka.

Monga chinthu chodalirika komanso chotsimikizirika, mapaipi athu achitsulo ozungulira arc welded amatengedwa kwambiri m'mafakitale ndi mapulojekiti azomangamanga chifukwa chakuchita bwino, kulimba komanso kudalirika. Kumanga kwake kwapamwamba kumapanga chisankho choyamba cha kayendedwe ka madzi ndi gasi, makamaka mumzere wa gasi wapansi pansi pomwe chitetezo ndi mphamvu ndizofunikira.

Mwachidule, spiral submerged arc welded steel pipe ndi chinthu chabwino kwambiri chomwe chimapangidwa kuti chikwaniritse zosowa zosiyanasiyana zamakina operekera madzi ndi mpweya. Chifukwa cha kusinthasintha kwake komanso kudalirika, yakhala gawo lalikulu m'mafakitale osiyanasiyana komanso ma projekiti a zomangamanga, makamaka mzere wa gasi wapansi panthaka. Ubwino wake wapadera komanso magwiridwe antchito ake zimapangitsa kuti ikhale yofunikira pakuwonetsetsa kuti pamakhala njira yabwino komanso yotetezeka yoyendera gasi. Khulupirirani kudalirika ndi magwiridwe antchito a mapaipi athu achitsulo ozungulira arc welded pazosowa zanu zonse zamadzimadzi ndi gasi.

 


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